one for three - Orban

specifications
specification
PERFORMANCE
INSTALLATION INSTALLATION
It is impossible to characterize the listening quality of even the simplest limiter or
compressor based on specifications, because such specifications cannot adequately
describe the crucial dynamic processes that occur under program conditions. Therefore,
the only way to evaluate the sound of an audio processor meaningfully is by subjective
listening tests.
Certain specifications are presented here to assure the engineer that they are
reasonable, to help plan the installation, and make certain comparisons with other
processing equipment.
Specifications apply for measurements from analog left/right input to analog left/right output.
Frequency Response
(Bypass Mode)
Noise
Total System L/R Channel
Separation
Polarity
Internal Processing Sample
rate
Processing Resolution
Delay
Operating Mode
Depending on settings, is flat or follows standard 50 µs or 75 µs pre-emphasis curve
±0.10 dB, 20 Hz – 20 kHz. (At 32 kHz input samplerate, the passband is reduced to
approximately 14.7 kHz.) Analog left/right output and digital output can be user-configured
for flat or pre-emphasized output.
Output noise floor will depend upon how much gain the processor is set for (Limit
Drive, AGC Drive, Two-Band Drive, and/or Multiband Drive), gating level, equalization,
noise reduction, etc. The dynamic range of the A/D Converter, which has a specified
overload-to–noise ratio of 110 dB, primarily governs it.
The dynamic range of the digital signal processing is 144 dB.
>70 dB, 20 Hz – 20 kHz; 90 dB typical (analog I/O).
Digital I/O separation is essentially infinite.
(Bypass Mode; Operate Mode when processing chain is configured for linear phase):
Absolute polarity maintained.
Positive-going signal on input will result in positive-going signal on output.
48 kHz. We believe this provides maximum audible transparency by minimizing numerical
“noise” in the equalizers and filters while still preserving a pure, transparent
sound. The double-precision equalizers and crossover filters used throughout the 6300
produce at least 6 dB lower noise and nonlinear distortion than they would at 96 kHz.
Internal processing has 24 bit (fixed point) or higher resolution;
uses Motorola DSP56367 chips.
The minimum available input/output delay is approximately 20 ms, as determined by
the advanced “look-ahead” processing algorithms employed.
This can be padded to exactly one frame of 24, 25, 29.97 or 30 frames/second video
up to a maximum delay of 50 ms.
Stereo or dual-mono. In dual-mono mode, both processing channels have the same
subjective adjustments (as determined by the active preset) but are otherwise independent,
making this mode appropriate for dual-language transmissions.
Operating mode can be set via GPI, Ethernet and serial connections, internal clockbased
automation and AES3 Status Bits.
Analog Audio Input
Configuration Stereo / Dual-Mono.
Impedance >10 kΩ load impedance, electronically balanced.
Nominal Input Level Software adjustable from –4.0 to +13.0 dBu (VU).
Maximum Input Level +27 dBu.
Connectors
Two XLR-type, female, EMI-suppressed. Pin 1 chassis ground, Pins 2 (+) and 3 electronically
balanced, floating and symmetrical.
A/D Conversion 24 bit 128x oversampled delta sigma converter with linear-phase anti-aliasing filter.
Filtering
Analog Audio Output
RFI filtered, with high-pass filter at 0.15 Hz (–3 dB).
Configuration Stereo. Flat or pre-emphasized (at 50 µs or 75 µs), software-selectable.
Source Impedance 50 Ω, electronically balanced and floating.
Load Impedance 600 Ω or greater, balanced or unbalanced. Termination not required or recommended.
Output Level
Adjustable from –6 dBu to +24 dBu peak, into 600 Ω or greater load,
(100% peak modulation)
software-adjustable.
Signal-to-Noise
≥100 dB unweighted
(Bypass mode, 20 Hz – 20 kHz bandwidth, referenced to 100% modulation).
Distortion ≤0.01% THD (Bypass mode, de-emphasized) 20 Hz – 20 kHz bandwidth.
Connectors
Two XLR-type, male, EMI-suppressed. Pin 1 chassis ground,
Pins 2 (+) and 3 electronically balanced, floating and symmetrical.
D/A Conversion 24 bit 128x oversampled.
Filtering
Digital Audio Input
RFI filtered.
Stereo or Two-Channel (dual-mono) per AES3 standard, 24 bit resolution, software
Configuration
selection of stereo or dual-mono. Unit can detect Stereo or Two-Channel status bits
and switch modes appropriately.
User Bits Unit can pass AES3 User Bits from its AES input to AES Output #1.
Sample Rate 32, 44.1, 48, 88.2 or 96 kHz, automatically selected.
Connector
XLR-type, female, EMI-suppressed. Pin 1 chassis ground, pins 2 and 3 transformer balanced
and floating, 110 Ω impedance.
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